Washer displays F70, may be unresponsive or freeze during operation.

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Possible Causes

Failed main control board, power supply issue to control, loose control connectors, user interface communication fault

Safety first: Unplug the washer before accessing the console or control board.

Step-by-step:

Power reset: Unplug for 5–10 minutes, then plug back in and attempt to start a cycle.
Inspect CCU: Remove the top panel and inspect the CCU for burnt components or loose connectors.
Check UI connections: Remove the console and reseat the ribbon cable and harness between the UI and CCU.
Replace CCU: If F70 persists and wiring is intact, replace the main control board.

Professional Required 5/5

Main Control Board (CCU)

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